.banner {
    position: relative;
    font-size: 0;
    text-align: center;
}

.banner_img_wrap {
    display: none
}

.banner_img_wrap.active {
    display: block;
}

.banner .car_name {
    margin: 0 auto;
    bottom: 30px;
    font-size: 40px;
    color: #ffffff;
    text-align: center;
    position: absolute;
    left: 0;
    right: 0;
    width: 100%;
    bottom: 170px;
}

.banner .car_name .name {
    display: inline-block;
    padding: 0 25px;
    max-width: 800px;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 70px;
    line-height: 70px;
    background-color: rgba(65, 65, 65, 0.8);
}

.banner .banner_btn_container {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
}

.banner .banner_btn_container .banner_btn_wrap {
    width: 1200px;
    margin: 0 auto;
    text-align: right;
}

.banner .banner_btn_container .banner_btn_wrap .btn {
    color: #000000;
    display: inline-block;
    background-color: #d2d2d2;
    width: 100px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    margin-left: 15px;
}

.banner .banner_btn_container .banner_btn_wrap .btn.active, .banner .banner_btn_container .banner_btn_wrap .btn:hover {
    background-color: #ffffff;
}

.banner .banner_btn_container .banner_btn_wrap .btn span {
    font-size: 12px;
    padding-left: 5px;
}

.product_wrap {
    padding-top: 15px;
}

.product_wrap .setting {
    width: 1200px;
    margin: 0 auto;
    padding: 0 80px;
    font-size: 0;
}

.product_wrap .setting img {
    width: 100%;
}

.product_wrap .setting_desc {
    width: 450px;
    font-size: 24px;
    color: #040000;
    display: inline-block;
}

.product_wrap .setting_desc p {
    height: 40px;
    line-height: 40px;
    background: linear-gradient( 90deg, #bec4ce 0%, #ffffff 100%);
    padding-left: 30px;
    margin-top: 30px;
}

.product_wrap .setting_num {
    width: 590px;
    display: inline-block;
    font-size: 0;
    vertical-align: top;
    padding: 0 29.5px;
}

.product_wrap .setting_num .title {
    line-height: 40px;
    display: block;
    margin-top: 30px;
    padding-left: 5px;
    font-size: 16px;
}

.product_wrap .setting_num p {
    font-size: 14px;
    background-color: #40454a;
    line-height: 40px;
    height: 40px;
    color: #ffffff;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product_wrap .setting_num p.short {
    width: 167px;
    display: inline-block;
    margin: 7px 5px;
}

.product_wrap .setting_num p.long {
    width: 255.5px;
    display: inline-block;
    margin: 7px 5px;
}

.product_wrap .what {
    background-color: #f7f7f7;
    margin-top: 60px;
}

.product_wrap .what_desc {
    padding: 0 80px;
    font-size: 0;
    width: 1200px;
    margin: 0 auto;
}

.product_wrap .what_desc .border, .product_wrap .what_desc .need {
    margin-top: 40px;
    display: inline-block;
    vertical-align: top;
}

.product_wrap .what_desc .border {
    padding-right: 20px;
    width: 420px;
}

.product_wrap .what_desc .need {
    padding-left: 100px;
    width: 620px;
}

.product_wrap .what_desc .title {
    font-size: 36px;
    line-height: 46px;
    margin-bottom: 30px;
}

.product_wrap .what_desc p {
    font-size: 14px;
    line-height: 26px;
}

.product_wrap .what_desc .need p {
    line-height: 30px;
    position: relative;
    padding-left: 16px;
}

.product_wrap .what_desc .need p::after {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #000000;
    position: absolute;
    left: 0;
    top: 10px;
}

.product_wrap .what_car {
    margin-top: 60px;
    position: relative;
}

.product_wrap .what_car .square_list {
    width: 1200px;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    margin: 0 auto;
    padding: 0 80px;
}

.product_wrap .what_car .image {
    font-size: 0;
}

.product_wrap .what_car .square_list .square {
    width: 108px;
    height: 90px;
    display: inline-block;
    background: url('/assets/product_square.png') no-repeat;
    background-size: 100%;
    text-align: center;
    color: #ffffff;
    font-size: 24px;
    padding: 0 10px;
    vertical-align: top;
    margin-right: 30px;
    margin-bottom: 40px;
}

.product_wrap .what_car .square_list .square p {
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    justify-content: center;
}

.product_wrap .history {
    width: 1200px;
    margin: 0 auto;
    padding: 0 80px;
}

.product_wrap .history .list {
    margin-top: 70px;
    font-size: 0;
}

.product_wrap .history .title {
    font-size: 36px;
    text-align: center;
    margin-top: 70px;
}

.product_wrap .history .sub_title {
    font-size: 18px;
    text-align: center;
    margin-top: 5px;
    font-weight: normal;
    color: #6e6e6e;
}
.product_wrap .history .list_cell {
    width: 329px;
    display: inline-block;
    margin: 0 8.8px;
}

.product_wrap .history .list_cell h4 {
    font-size: 16px;
    text-align: center;
    line-height: 50px;
    white-space: nowrap;
    overflow: hidden;
}

.product_wrap .history .list_cell span {
    display: inline-block;
    width: 100%;
    height: 39px;
    line-height: 39px;
    font-size: 16px;
    border: 1px solid #7b798b;
    text-align: center;
}

.product_wrap .history .list_cell_fourth .title {
    font-size: 22px;
    text-align: center;
    margin-top: 70px;
}

.product_wrap .history .list_cell_fourth .sub_title {
    font-size: 22px;
    text-align: center;
    margin-top: 5px;
    font-weight: normal;
    color: #000000;
    margin-top: 8px;
    margin-bottom: 25px;
}

.product_wrap .history .list_cell_fourth p {
    color: #4d4d4d;
    font-size: 18px;
    text-align: center;
    line-height: 30px;
}

.product_wrap .history .image {
    padding: 0 30px;
    margin-top: 30px;
    margin-bottom: 70px;
}

.product_wrap .history .image img {
    width: 100%;
}

.product_wrap .advantage {
    margin-top: 70px;
    width: 1200px;
    margin: 0 auto;
    position: relative;
}

.product_wrap .advantage .title {
    font-size: 30px;
    width: 250px;
    height: 80px;
    line-height: 80px;
    text-align: right;
    background-color: #0f5f9b;
    color: #f7f7f7;
    padding-right: 20px;
}

.product_wrap .advantage .title span {
    font-size: 60px;
}

.product_wrap .advantage .line {
    text-align: center;
    margin-top: 30px;
    font-size: 0;
}

.product_wrap .advantage .line img{
    width: 450px;
}

.product_wrap .advantage .cell_around {
    width: 250px;
    display: inline-block;
    position: absolute;
}

.product_wrap .advantage .cell_around .head {
    font-weight: bold;
    font-size: 22px;
    color: #0d58a1;
}

.product_wrap .advantage .cell_around .head .index {
    font-size: 40px;
    position: relative;
    display: inline-block;
    padding-right: 15px;
}

.product_wrap .advantage .cell_around .head .name {
    padding-left: 7px;
}

.product_wrap .advantage .cell_around .head .index:after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #0d58a1;
    position: absolute;
    right: 0;
    bottom: 13px;
}

.product_wrap .advantage .cell_wrap {
    padding-bottom: 230px;
}

.product_wrap .advantage .cell_around p {
    font-size: 12px;
    color: #333434;
    line-height: 24px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(1) {
    top: -30px;
    left: 431px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(2) {
    top: 158px;
    left: 133px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(3) {
    top: 373px;
    left: 193px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(4) {
    top: -20px;
    left: 780px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(5) {
    top: 202px;
    left: 849px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(6) {
    top: 381px;
    left: 825px;
}

.product_wrap .advantage .cell_wrap .cell_around:nth-child(7) {
    top: 518px;
    left: 487px;
}